INT 1F U - C&T "SuperState" BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware.  The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. - SET PASSWORD
	AH = F5h
	BL = FEh
	CX:SI -> input string
	BH = length of input string (if BH = 00h, clear password)
Return: CF set on error
Note:	the input string must be encrypted by INT 1Fh/AH=F5h/BL=FDh
SeeAlso: AH=F5h/BL=FDh,AH=F5h/BL=FFh